[Mesa-dev] [PATCH 27/27] radeonsi: enable tessellation, update GL3.txt & release notes

[Marek Olšák]

From: Marek Olšák <marek.olsak at amd.com>

---
 docs/GL3.txt                           |  2 +-
 docs/relnotes/10.7.0.html              |  1 +
 src/gallium/drivers/radeonsi/si_pipe.c | 14 +++++++++++---
 3 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/docs/GL3.txt b/docs/GL3.txt
index f2d06f1..0907a5f 100644
--- a/docs/GL3.txt
+++ b/docs/GL3.txt
@@ -112,7 +112,7 @@ GL 4.0, GLSL 4.00:
   GL_ARB_gpu_shader_fp64                               DONE (nvc0, softpipe)
   GL_ARB_sample_shading                                DONE (i965, nv50, nvc0, r600, radeonsi)
   GL_ARB_shader_subroutine                             started (Dave)
-  GL_ARB_tessellation_shader                           started (Chris, Ilia)
+  GL_ARB_tessellation_shader                           DONE (radeonsi)
   GL_ARB_texture_buffer_object_rgb32                   DONE (i965, nvc0, r600, radeonsi, llvmpipe, softpipe)
   GL_ARB_texture_cube_map_array                        DONE (i965, nv50, nvc0, r600, radeonsi, llvmpipe, softpipe)
   GL_ARB_texture_gather                                DONE (i965, nv50, nvc0, r600, radeonsi, llvmpipe, softpipe)
diff --git a/docs/relnotes/10.7.0.html b/docs/relnotes/10.7.0.html
index 7518389..089b0a9 100644
--- a/docs/relnotes/10.7.0.html
+++ b/docs/relnotes/10.7.0.html
@@ -45,6 +45,7 @@ Note: some of the new features are only available with certain drivers.
 
 <ul>
 <li>GL_ARB_shader_stencil_export on llvmpipe</li>
+<li>GL_ARB_tessellation_shader on radeonsi</li>
 </ul>
 
 <h2>Bug fixes</h2>
diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c
index 65e4983..3bb9574 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.c
+++ b/src/gallium/drivers/radeonsi/si_pipe.c
@@ -299,9 +299,11 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_SAMPLER_VIEW_TARGET:
 	case PIPE_CAP_VERTEXID_NOBASE:
 	case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
-	case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 		return 0;
 
+	case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
+		return 30;
+
 	case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 		return PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600;
 
@@ -381,6 +383,13 @@ static int si_get_shader_param(struct pipe_screen* pscreen, unsigned shader, enu
 	case PIPE_SHADER_VERTEX:
 	case PIPE_SHADER_GEOMETRY:
 		break;
+	case PIPE_SHADER_TESS_CTRL:
+	case PIPE_SHADER_TESS_EVAL:
+		/* LLVM 3.6.2 is required for tessellation because of bug fixes there */
+		if (HAVE_LLVM < 0x0306 ||
+		    (HAVE_LLVM == 0x0306 && MESA_LLVM_VERSION_PATCH < 2))
+			return 0;
+		break;
 	case PIPE_SHADER_COMPUTE:
 		switch (param) {
 		case PIPE_SHADER_CAP_PREFERRED_IR:
@@ -407,7 +416,6 @@ static int si_get_shader_param(struct pipe_screen* pscreen, unsigned shader, enu
 		}
 		break;
 	default:
-		/* TODO: support tessellation */
 		return 0;
 	}
 
@@ -439,7 +447,7 @@ static int si_get_shader_param(struct pipe_screen* pscreen, unsigned shader, enu
 		/* Indirection of geometry shader input dimension is not
 		 * handled yet
 		 */
-		return shader < PIPE_SHADER_GEOMETRY;
+		return shader != PIPE_SHADER_GEOMETRY;
 	case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 	case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 	case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
-- 
2.1.0